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Diffstat (limited to 'src/mesa/main/image.c')
-rw-r--r--src/mesa/main/image.c148
1 files changed, 114 insertions, 34 deletions
diff --git a/src/mesa/main/image.c b/src/mesa/main/image.c
index 93521a79bd..b6841d7a13 100644
--- a/src/mesa/main/image.c
+++ b/src/mesa/main/image.c
@@ -30,7 +30,6 @@
#include "glheader.h"
-#include "bufferobj.h"
#include "colormac.h"
#include "context.h"
#include "image.h"
@@ -38,7 +37,6 @@
#include "histogram.h"
#include "macros.h"
#include "pixel.h"
-#include "mtypes.h"
/** Compute ceiling of integer quotient of A divided by B. */
@@ -201,7 +199,9 @@ GLint _mesa_sizeof_packed_type( GLenum type )
return sizeof(GLuint);
case GL_UNSIGNED_SHORT_8_8_MESA:
case GL_UNSIGNED_SHORT_8_8_REV_MESA:
- return sizeof(GLushort);
+ return sizeof(GLushort);
+ case GL_UNSIGNED_INT_24_8_EXT:
+ return sizeof(GLuint);
default:
return -1;
}
@@ -248,6 +248,8 @@ GLint _mesa_components_in_format( GLenum format )
return 4;
case GL_YCBCR_MESA:
return 2;
+ case GL_DEPTH_STENCIL_EXT:
+ return 2;
default:
return -1;
}
@@ -318,6 +320,11 @@ GLint _mesa_bytes_per_pixel( GLenum format, GLenum type )
return sizeof(GLushort);
else
return -1;
+ case GL_UNSIGNED_INT_24_8_EXT:
+ if (format == GL_DEPTH_STENCIL_EXT)
+ return sizeof(GLuint);
+ else
+ return -1;
default:
return -1;
}
@@ -443,6 +450,12 @@ _mesa_is_legal_format_and_type( GLcontext *ctx, GLenum format, GLenum type )
return GL_TRUE;
else
return GL_FALSE;
+ case GL_DEPTH_STENCIL_EXT:
+ if (ctx->Extensions.EXT_packed_depth_stencil
+ && type == GL_UNSIGNED_INT_24_8_EXT)
+ return GL_TRUE;
+ else
+ return GL_FALSE;
default:
; /* fall-through */
}
@@ -2066,6 +2079,7 @@ extract_uint_indexes(GLuint n, GLuint indexes[],
srcType == GL_SHORT ||
srcType == GL_UNSIGNED_INT ||
srcType == GL_INT ||
+ srcType == GL_UNSIGNED_INT_24_8_EXT ||
srcType == GL_HALF_FLOAT_ARB ||
srcType == GL_FLOAT);
@@ -2221,6 +2235,24 @@ extract_uint_indexes(GLuint n, GLuint indexes[],
}
}
break;
+ case GL_UNSIGNED_INT_24_8_EXT:
+ {
+ GLuint i;
+ const GLuint *s = (const GLuint *) src;
+ if (unpack->SwapBytes) {
+ for (i = 0; i < n; i++) {
+ GLuint value = s[i];
+ SWAP4BYTE(value);
+ indexes[i] = value & 0xff; /* lower 8 bits */
+ }
+ }
+ else {
+ for (i = 0; i < n; i++)
+ indexes[i] = s[i] & 0xfff; /* lower 8 bits */
+ }
+ }
+ break;
+
default:
_mesa_problem(NULL, "bad srcType in extract_uint_indexes");
return;
@@ -3563,6 +3595,7 @@ _mesa_unpack_stencil_span( const GLcontext *ctx, GLuint n,
srcType == GL_SHORT ||
srcType == GL_UNSIGNED_INT ||
srcType == GL_INT ||
+ srcType == GL_UNSIGNED_INT_24_8_EXT ||
srcType == GL_HALF_FLOAT_ARB ||
srcType == GL_FLOAT);
@@ -3801,10 +3834,20 @@ _mesa_pack_stencil_span( const GLcontext *ctx, GLuint n,
void
-_mesa_unpack_depth_span( const GLcontext *ctx, GLuint n, GLfloat *dest,
+_mesa_unpack_depth_span( const GLcontext *ctx, GLuint n,
+ GLenum dstType, GLvoid *dest, GLfloat depthScale,
GLenum srcType, const GLvoid *source,
const struct gl_pixelstore_attrib *srcPacking )
{
+ GLfloat depthTemp[MAX_WIDTH], *depthValues;
+
+ if (dstType == GL_FLOAT) {
+ depthValues = (GLfloat *) dest;
+ }
+ else {
+ depthValues = depthTemp;
+ }
+
(void) srcPacking;
switch (srcType) {
@@ -3813,7 +3856,7 @@ _mesa_unpack_depth_span( const GLcontext *ctx, GLuint n, GLfloat *dest,
GLuint i;
const GLubyte *src = (const GLubyte *) source;
for (i = 0; i < n; i++) {
- dest[i] = BYTE_TO_FLOAT(src[i]);
+ depthValues[i] = BYTE_TO_FLOAT(src[i]);
}
}
break;
@@ -3822,7 +3865,7 @@ _mesa_unpack_depth_span( const GLcontext *ctx, GLuint n, GLfloat *dest,
GLuint i;
const GLubyte *src = (const GLubyte *) source;
for (i = 0; i < n; i++) {
- dest[i] = UBYTE_TO_FLOAT(src[i]);
+ depthValues[i] = UBYTE_TO_FLOAT(src[i]);
}
}
break;
@@ -3831,7 +3874,7 @@ _mesa_unpack_depth_span( const GLcontext *ctx, GLuint n, GLfloat *dest,
GLuint i;
const GLshort *src = (const GLshort *) source;
for (i = 0; i < n; i++) {
- dest[i] = SHORT_TO_FLOAT(src[i]);
+ depthValues[i] = SHORT_TO_FLOAT(src[i]);
}
}
break;
@@ -3840,7 +3883,7 @@ _mesa_unpack_depth_span( const GLcontext *ctx, GLuint n, GLfloat *dest,
GLuint i;
const GLushort *src = (const GLushort *) source;
for (i = 0; i < n; i++) {
- dest[i] = USHORT_TO_FLOAT(src[i]);
+ depthValues[i] = USHORT_TO_FLOAT(src[i]);
}
}
break;
@@ -3849,7 +3892,7 @@ _mesa_unpack_depth_span( const GLcontext *ctx, GLuint n, GLfloat *dest,
GLuint i;
const GLint *src = (const GLint *) source;
for (i = 0; i < n; i++) {
- dest[i] = INT_TO_FLOAT(src[i]);
+ depthValues[i] = INT_TO_FLOAT(src[i]);
}
}
break;
@@ -3858,19 +3901,39 @@ _mesa_unpack_depth_span( const GLcontext *ctx, GLuint n, GLfloat *dest,
GLuint i;
const GLuint *src = (const GLuint *) source;
for (i = 0; i < n; i++) {
- dest[i] = UINT_TO_FLOAT(src[i]);
+ depthValues[i] = UINT_TO_FLOAT(src[i]);
+ }
+ }
+ break;
+ case GL_UNSIGNED_INT_24_8_EXT: /* GL_EXT_packed_depth_stencil */
+ if (dstType == GL_UNSIGNED_INT && ctx->Pixel.DepthScale == 1.0 &&
+ ctx->Pixel.DepthBias == 0.0 && depthScale == (GLfloat) 0xffffff) {
+ const GLuint *src = (const GLuint *) source;
+ GLuint *zValues = (GLuint *) dest;
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ zValues[i] = src[i] & 0xffffff00;
+ }
+ return;
+ }
+ else {
+ const GLuint *src = (const GLuint *) source;
+ const GLfloat scale = 1.0f / 0xffffff;
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ depthValues[i] = (src[i] >> 8) * scale;
}
}
break;
case GL_FLOAT:
- MEMCPY(dest, source, n * sizeof(GLfloat));
+ MEMCPY(depthValues, source, n * sizeof(GLfloat));
break;
case GL_HALF_FLOAT_ARB:
{
GLuint i;
const GLhalfARB *src = (const GLhalfARB *) source;
for (i = 0; i < n; i++) {
- dest[i] = _mesa_half_to_float(src[i]);
+ depthValues[i] = _mesa_half_to_float(src[i]);
}
}
break;
@@ -3882,12 +3945,27 @@ _mesa_unpack_depth_span( const GLcontext *ctx, GLuint n, GLfloat *dest,
/* apply depth scale and bias and clamp to [0,1] */
if (ctx->Pixel.DepthScale != 1.0 || ctx->Pixel.DepthBias != 0.0) {
+ _mesa_scale_and_bias_depth(ctx, n, depthValues);
+ }
+
+ if (dstType == GL_UNSIGNED_INT) {
+ GLuint *zValues = (GLuint *) dest;
GLuint i;
for (i = 0; i < n; i++) {
- GLfloat d = dest[i] * ctx->Pixel.DepthScale + ctx->Pixel.DepthBias;
- dest[i] = CLAMP(d, 0.0F, 1.0F);
+ zValues[i] = (GLuint) (depthValues[i] * depthScale);
}
}
+ else if (dstType == GL_UNSIGNED_SHORT) {
+ GLushort *zValues = (GLushort *) dest;
+ GLuint i;
+ for (i = 0; i < n; i++) {
+ zValues[i] = (GLushort) (depthValues[i] * depthScale);
+ }
+ }
+ else {
+ ASSERT(dstType == GL_FLOAT);
+ ASSERT(depthScale == 1.0F);
+ }
}
@@ -3900,18 +3978,12 @@ _mesa_pack_depth_span( const GLcontext *ctx, GLuint n, GLvoid *dest,
const struct gl_pixelstore_attrib *dstPacking )
{
GLfloat depthCopy[MAX_WIDTH];
- const GLboolean bias_or_scale = ctx->Pixel.DepthBias != 0.0 ||
- ctx->Pixel.DepthScale != 1.0;
ASSERT(n <= MAX_WIDTH);
- if (bias_or_scale) {
- GLuint i;
- for (i = 0; i < n; i++) {
- GLfloat d;
- d = depthSpan[i] * ctx->Pixel.DepthScale + ctx->Pixel.DepthBias;
- depthCopy[i] = CLAMP(d, 0.0F, 1.0F);
- }
+ if (ctx->Pixel.DepthScale != 1.0 || ctx->Pixel.DepthBias != 0.0) {
+ _mesa_memcpy(depthCopy, depthSpan, n * sizeof(GLfloat));
+ _mesa_scale_and_bias_depth(ctx, n, depthCopy);
depthSpan = depthCopy;
}
@@ -4089,7 +4161,7 @@ _mesa_unpack_image( GLuint dimensions,
/**
* Perform clipping for glDrawPixels. The image's window position
- * and size, and the unpack skipPixels and skipRows are adjusted so
+ * and size, and the unpack SkipPixels and SkipRows are adjusted so
* that the image region is entirely within the window and scissor bounds.
* NOTE: this will only work when glPixelZoom is (1, 1).
*
@@ -4100,15 +4172,19 @@ GLboolean
_mesa_clip_drawpixels(const GLcontext *ctx,
GLint *destX, GLint *destY,
GLsizei *width, GLsizei *height,
- GLint *skipPixels, GLint *skipRows)
+ struct gl_pixelstore_attrib *unpack)
{
const GLframebuffer *buffer = ctx->DrawBuffer;
+ if (unpack->RowLength == 0) {
+ unpack->RowLength = *width;
+ }
+
ASSERT(ctx->Pixel.ZoomX == 1.0F && ctx->Pixel.ZoomY == 1.0F);
/* left clipping */
if (*destX < buffer->_Xmin) {
- *skipPixels += (buffer->_Xmin - *destX);
+ unpack->SkipPixels += (buffer->_Xmin - *destX);
*width -= (buffer->_Xmin - *destX);
*destX = buffer->_Xmin;
}
@@ -4121,7 +4197,7 @@ _mesa_clip_drawpixels(const GLcontext *ctx,
/* bottom clipping */
if (*destY < buffer->_Ymin) {
- *skipRows += (buffer->_Ymin - *destY);
+ unpack->SkipRows += (buffer->_Ymin - *destY);
*height -= (buffer->_Ymin - *destY);
*destY = buffer->_Ymin;
}
@@ -4138,11 +4214,11 @@ _mesa_clip_drawpixels(const GLcontext *ctx,
/**
* Perform clipping for glReadPixels. The image's window position
- * and size, and the pack skipPixels and skipRows are adjusted so
- * that the image region is entirely within the window bounds.
+ * and size, and the pack skipPixels, skipRows and rowLength are adjusted
+ * so that the image region is entirely within the window bounds.
* Note: this is different from _mesa_clip_drawpixels() in that the
- * scissor box is ignored, and we use the bounds of the current "read"
- * surface;
+ * scissor box is ignored, and we use the bounds of the current readbuffer
+ * surface.
*
* \return GL_TRUE if image is ready for drawing or
* GL_FALSE if image was completely clipped away (draw nothing)
@@ -4151,13 +4227,17 @@ GLboolean
_mesa_clip_readpixels(const GLcontext *ctx,
GLint *srcX, GLint *srcY,
GLsizei *width, GLsizei *height,
- GLint *skipPixels, GLint *skipRows)
+ struct gl_pixelstore_attrib *pack)
{
const GLframebuffer *buffer = ctx->ReadBuffer;
+ if (pack->RowLength == 0) {
+ pack->RowLength = *width;
+ }
+
/* left clipping */
if (*srcX < 0) {
- *skipPixels += (0 - *srcX);
+ pack->SkipPixels += (0 - *srcX);
*width -= (0 - *srcX);
*srcX = 0;
}
@@ -4170,7 +4250,7 @@ _mesa_clip_readpixels(const GLcontext *ctx,
/* bottom clipping */
if (*srcY < 0) {
- *skipRows += (0 - *srcY);
+ pack->SkipRows += (0 - *srcY);
*height -= (0 - *srcY);
*srcY = 0;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-30 03:18:12 +0000